What kind of are you trying to add to your game?
Learn to code your own json models without a plugin wrapper. Total Control
You can achieve custom items entirely through vanilla Minecraft mechanics by using a custom resource pack combined with the CustomModelData NBT tag. Plugins like MyCommand or basic command blocks can assign these custom models to items without needing a heavy framework plugin.
What kind of are you trying to add to your game?
Learn to code your own json models without a plugin wrapper. Total Control itemsadder plugin free download
You can achieve custom items entirely through vanilla Minecraft mechanics by using a custom resource pack combined with the CustomModelData NBT tag. Plugins like MyCommand or basic command blocks can assign these custom models to items without needing a heavy framework plugin. What kind of are you trying to add to your game